Dir   Size   BlkSz  Thr#  Read (CPU%)   Write (CPU%)   Seeks (CPU%)
----- ------ ------- ---- ------------- -------------- --------------
/mnt/  254    4096    1   18.8071 11.3% 17.9441 18.8%  308.489 1.10%
/mnt/  254    4096    2   24.5801 17.0% 17.6617 19.0%  399.422 1.79%
/mnt/  254    4096    4   26.8762 19.2% 17.2638 19.1%  437.104 1.91%
/mnt/  254    4096    8   28.1589 20.5% 16.9545 19.1%  480.354 2.21%